AP EAMCET201921 Apr 2019Morning ShiftChemistryGeneral Organic ChemistryActual
Which of the following sets is in the correct order regarding the property mentioned against them?
Options
- AI, II only
- BI, III only
- CII, III only
- DI, II, III
Correct answer
B. I, III only
Step-by-step solution
I. Key Idea (-I) group, if are present along with - COOH group in an acid, they increases the acidic property while (+) I groups or groups show hyperconjugation will decreases the acidic property. (a) NCCH ₂ COOH : Contain, NC (i.e. -I ) group along with - COOH , thus will increases the acidic nature. (b) FCH ₂- COOH : Contain, F (i.e. -I ) group thus increases the acidic nature. Between NCCH ₂ COOH and FCH ₂ COOH , NCCH ₂ COOH is more acidic due to stronger (-) I effect. (c) H ₃ CCH ₂ COOH : Contain, CH ₃ group wh